So the Krsna consciousness movement is very important movement. It is neither manufactured nor unauthorized. It is authorized, the oldest. Yogah proktah puratanah. Krsna said to Arjuna that "I am repeating the same yoga, puratanam. Krsna does not say that "I am manufacturing another system of yoga." No. "I am speaking to you the same yoga system."
By H.D.G.Srila Prabhupada